#404DD3#404DD3

#404DD3 is a mid, highly saturated blue. Relative luminance 0.111; OKLCH L 49.6% C 0.204 H 272.2°. Best body text is #FFFFFF at 6.52:1 contrast (WCAG AA passes).

Color values

HEX	#404DD3
RGB	rgb(64, 77, 211)
HSL	hsl(235, 63%, 54%)
HSV	hsv(235, 70%, 83%)
CMYK	cmyk(69.7%, 63.5%, 0%, 17.3%)
CIE-LAB	lab(39.75, 38.76, -70.44)
CIE-LCH	lch(39.75, 80.40, 298.82°)
OKLab	oklab(49.62% 0.0079 -0.2034)
OKLCH	oklch(49.62% 0.204 272.2)
XYZ	xyz(16.5221, 11.0993, 62.8870)
Luminance	0.1110 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#404DD3 #D3C640

analogous

#4097D3 #404DD3 #7D40D3

triadic

#404DD3 #D3404D #4DD340

tetradic

#404DD3 #D34097 #D3C640 #40D37D

square

#404DD3 #D34097 #D3C640 #40D37D

split-complementary

#404DD3 #D37D40 #97D340

monochromatic

#1D257C #2834AE #404DD3 #727BDE #A3AAEA

Accessibility & contrast

On white

6.52

#404DD3 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.22

#404DD3 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #404DD3

6.52:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##404DD3	#FFFFFF	#000000	##FFFFFF
##404DD3	1.00	6.52	3.22	6.52
#FFFFFF	6.52	1.00	21.00	1.00
#000000	3.22	21.00	1.00	21.00
##FFFFFF	6.52	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0065D7

Deuteranopia (green-blind)

#0057D0

Tritanopia (blue-blind)

#007089

Achromatopsia (no color)

#5E5E5E

Design tokens & code

CSS

--color: #404dd3;
/* rgb */ color: rgb(64, 77, 211);
/* oklch */ color: oklch(49.6% 0.204 272.2);

Tailwind

colors: {
  custom: {
    50: '#887fe2',
    500: '#404dd3',
    950: '#000000',
  },
}

SCSS

$custom: #404dd3;
$custom-light: #887fe2;
$custom-dark: #000000;

JSON

{
  "hex": "#404dd3",
  "rgb": {
    "r": 64,
    "g": 77,
    "b": 211
  },
  "hsl": {
    "h": 234.694,
    "s": 62.553,
    "l": 53.922
  },
  "oklch": {
    "l": 0.49616,
    "c": 0.20357,
    "h": 272.2
  },
  "luminance": 0.11101
}

Semantic roles & 50–950 ramp

primary

#404DD3

secondary

#D7D198

accent

#D742E6

background

#F9F7FE

surface

#F1EEFC

border

#CBC9D5

text

#0D0A15

muted

#7E7C84

Preview Lab

Preview with #404DD3

Body copy rendered with the generated semantic roles for this colour.

Preview Lab → · Contrast checker → · Palette generator →